Description:
LSPC is the Loading Simulation Program in C++, a watershed modeling system that includes streamlined Hydrologic Simulation Program Fortran (HSPF) algorithms for simulating hydrology, sediment, and general water quality on land as well as a simplified stream transport model. LSPC is derived from the Mining Data Analysis System (MDAS), which was developed by EPA Region 3 and has been widely used for mining applications and TMDLs. A key data management feature of this system is that it uses a Microsoft Access database to manage model data and weather text files for driving the simulation. The system also contains a module to assist in TMDL calculation and source allocations. For each model run, it automatically generates comprehensive text-file output by subwatershed for all land-layers, reaches, and simulated modules, which can be expressed on hourly or daily intervals. Output from LSPC has been linked to other model applications such as EFDC, WASP, and CE-QUAL-W2. LSPC has no inherent limitations in terms of modeling size or model operations. The Microsoft Visual C++ programming architecture allows for seamless integration with modern-day, widely available software such as Microsoft Access and Excel.
Model Keywords:
Clean Water Act (CWA), Land Use Changes, Population changes, Transformation (e.g., chemical reaction, partitioning, biodegradation), Transport (e.g., advection, bulk, dispersion, diffusion), Ecosystem, Water (e.g., surface water, ground water), Area Source (e.g., spray, fertilizer, lagoon, holding area), Point Source (e.g., tank, spill, stack, discharge pipe), Chemical (e.g., organic, inorganic, toxics), Physical (e.g., radiation, heat particles, fibers, noise), Toxic Substances Control Act (TSCA), Comprehensive Environmental Response, Compensation and Liability Act (CERCLA), Resource Conservation and Recovery Act (RCRA), Safe Drinking Water Act (SDWA),
Model Detail:
Model Evaluation
:The model has been compared against analytical solutions. Simulations have also been compared against same simulations made with HSPF.
Model URL
:http://www.epa.gov/athens/wwqtsc
Model Guidance Documents
:Watershed and Water Quality Modeling Technical Support Center maintains a LSPC Users Manual and is included with the installation package. The Users Manual is periodically updated as the model is enhanced.
Model Decision Documents
:Searches of the literature should provide more details about specific applications of the model.
Model Download Information
:The LSPC model is
available to be downloadedd.
modelcontactinfo
:Tim Wool
U.S. EPA ORD/NERL-ERD
Watershed and Water Quality Modeling Technical Support Center
Athens, GA
wool.tim@epa.gov 706-355-8312
Model Inputs
:Watershed delineations, meteorological data such as: rainfall, air temperature, humidity etc.
Model Outputs
:The model provides pollutagraphs (time series of loading data), hydrographs (time series of flow) and impacts of best management practices (BMPs). It is easy to transfer the time series files to other models such as EFDC and WASP.
Model Computer Requirements:
Model Operating Systems Needs
:Microsoft Windows 98 or Higher
Model Hardware Needs
:Standard Desktop System. Higher performance machine maybe need for large simulations.
Model Programming Language(s)
:Microsoft Visual C++
other_req
:There are seven basic components of the LSPC system. They include: (1) a WCS extension for efficient model setup, (2) an interactive, (3) data management tools, (4) data inventory tools, (5) data analysis tools, (6) a dynamic watershed model tailored for TMDL calculation, and (7) model results analysis. User needs WCS installed to use the extension.